Vehicle-wheel tire.



No. 7 5,170. I 'PATBNTED MAB.21,1905; H.021". HUBBARD. j r

VEHICLE} WHEEL TIRE.

APPLIOATIOH IILED D30. 30. 1903- 2 auras-5112311.

ilNirnn STATES Patented March 21 1905.

PATIENT Fries.

VEHlCLE-WHEEL TIRE.

SPECIFICATION forming part of Letters Patent No. 785,170, dated March 21, 1905. Application filed December 30, 1903. Serial No. 187,161.

To rtlflivhont fl; "my concern.-

Be it known that I, HENRY DE FOREST HUEBARD, a citizen of the United States, residing at Avalon, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Vehicle- Wheel Tires, of which the following is a specification, reference being had therein to the accompanying drawings, forming part of this specification, in which- Figure 1 is a side view '1 a vehicle-wheel provided with my improvedtire, partly broken away. -Fig. 2 is a partial develop ment of the exterior of the tire in plan. Fig.

3 is a vertical sectional view indicated bythe line-111,111 of Fig. 1. Fig. 4 is an enlarged sectional detail view showing a narrower tlre, having a single row of tread-ab utments. Figs. 5,6? and 7 are views similar to Fig. 2, showing various forms of tread-abutments. Fig. 8 is a sectional view similar to Fig. 4, showing a sqirare-shanked bolt. Figs. 9 and 10 are cross-sectional detail views showing modified constructions of tread-abutments.

articularly automobiles or traction-trucks ibr heavy work, and is designed to provide a tire which will be serviceable and durable under heavy loads and which will retain all ol" the advantages ofa resilient tire, having metallic contacting elements whichwill protect the resilient grcund-contact portions of I the tread from excessive wear, while. retaining all of the zulvantages thereof.

in general the invention consists in providing the tire with a continuous series of individual tread-abutmen'ts closely assembled and so arranged asto provide a rolling series of cushioning contacting treads. In the use of solid-rubber or' pneumatic tires considerable trouble and expcnse rcsults from the rapid wear and deterioration of the tire, especially under heavy loads, and as the most practical forms of such tires are approximately circular in cross-section'the available tread-surface at the point of contact is lim-' ited, so that the wear is necessarily excessive.

One of the objects of my invention has been to provide a tire which is provided with a series of tread-abutments arranged either My invention relates to tires for vehicles,

conditions of use.

as a single row or otherwise. The number.

may be varied as to width to suit requirements or conditions and will overcome the objections noted, while retaining all of the advantages incident to an all-rubber tire for either smooth or rough ground.

Referrin now to the drawings, 2 is the tire, connected by the usual spokes to the hub of any suitable construction or design. The tire is of forged, rolled, or cast metal and is provided on its outer surface with a continu- ,ous series of closely-adjacent recesses '3, with surrounding reinforcing retaining flanges or armors 4;, The function of these recesses and flanges is to receive and provide sockets for the tread-abutrn'ents 5 of rubber or other suitable resilient material, which are seated therein and preferably held by suitable retaining means, as bolts 6, which pass through elongated bearingopenings in the tire anti -are retained by nuts 7' on their inner ends. The outer end of the bolt may be of the usual bolt-head form, as in Fig. 4, or may be of button-head form, as in Figs. 1, 2, and 3, or

of any other form or shape, according to the Ordinarily I refer to interpose a washer 8 underneatht e head in a recess in the 'outer portion of the tread-abutment. These abutments may be ofvarious forms, as shown, either circular-or square, diamond or of other uadrilateral shape, and it.will be observed that in the latter forms they maybe arranged somewhat 'moreconipactly together, although it'is desirable that an appreciable space shall be maintained between the abutments. The advantages of thislatter feature of construction is that each abutment is thus free and i-I'rdependent in its action the tire has a high traction efficiency,

will keepitself clean, and on rough ground,

as cobblestones or- Belgian blocks, Willpresent considerable lateral 'engagement of-the,

contacting portions of the treads and is not liable'to slip. A further advantage is that the quadrilateral treads may be variously arranged, so as'to overlap beyond each other,

providinga practically continuous tread, as

in Figs. 6 and 7, or may be com actly grouped to secure the same efiect, aslin ig. 5.

Each individual tread-abutment will com- I press under the load, as shown at the bottom practice the rubber abutments may be com-,

pressed downwardly around the head and ear with more surface against the ground. When 1t isdesired to revent the bolts fi from turning, their shan s may be-squared,

to maintain.

as at 9, Fig. 8, and it will be understood that any means may be employed for locking the nuts or that othersecurlng devices may be substituted for the nut.

The tire is especially adapted for 'heavy traffic orrough roads. It is very easy ,to' turn out of tracks without slipping and is not liable to slide undei any conditions. They tread-abutments' may be readily and easily replaced when worn, while the entire constructlonis very economical in firstcost and In Fig, 9 I have shown amodified-construction in which the tread-abutment 5' is not provldedwith a metallic bearing-face, but is composed entirely of cushioning material and is seated in the recess 3"0f the tire 2',

- which is provided with surrounding clencherflanges 10, entering corresponding annular recesses 11 in the tread-abutment. In Fig. 10 the tread-abutment is provided 'with an inserted 'metal bearing-tread 1-2,

molded or otherwise secured in the treadfabutment only, without any connection with.

the tire other than the engagementthfireof with the abutment. i

In both constructions the "abutments are forced into the recesses andheld by the annular inwardly-extending clenching-flanges.

Various chan es and modifications may be made in the design, proportions, arran ements of treads, or in other details by t e skilled mechanic, and allsuch are to be considered as withinthe scope of the following claims. What I: claim isa 1. The combination 'with a tire having straight parallel edges and alternately-arranged abutmcnt-rccciving recesses arranged upon its tread-surface; of a series of adjacent quadrilateral resilient tread-abutments having metallic bcariugfaces alternately arranged outol'. alinemcntwith'each otherin the rcceiving-recesses, substantially as set forth.

2. A wheel-tire provided with adjacent resilient trcaul-abutnncuts havingmctallic bearing-fares, alternately arran 'cd out of alinement with each other urcum the tire-periphcry, substantially as set forth.

When thus constructed, the- 3. A wheel-tire-provided with adjacent quadrilateral resilient tread-abutments havthe area, of the treadand projecting out-.75

wardly beyond thereof, arranged diagonally across the face of the tire, substantially as set forth. a I

5. Awheel-tire provided with a series of recesses and a series of separate resilient tread-.

abutments secured in said recesses, arranged diagonally across the face of the tire, and having metallic bearing-faces, substantially as set forth. 1 i

6. 'Awheel-tir provided with a series of recesses, ground-contact tread-abutments of resilient material inounted'therein, and bolts secured in the tire passing through the abutments and provided with bearing-heads extendin beyond the abutments, substantially .as set orth.

7. A wheel-tire provided with a series of, recesses, ground contact tread abutmcnts of resilient material 1nounted therein, and bolts secured-in the tire passing through the abutments and provided with bearing-heads extending beyond the abutments, with intervening bearing-washers, substantially as set forth. r

8. A wheel-tire provided with a series of recesses and bolt-o enings, ground-contact tread-abutments o resilient material seated in said recesses, and securing-bolts passin throu h the abutments and tire, provided with caring-heads extending beyond the abutments, and securing-nuts, and so mounted in' the tire'as to permit free movement of the bolts, substantially as set forth.

9. A wheel-tire provided with a series of peripheral recesses, ground-contact tread-abutments of resilient material mounted therein, and securing-bolts passin through the abutments and rovided with caring heads normally exten ing be ond the faces of the abutments, substantial y as set forth.

10. The combinationwith a wheel-tire provided with a series of abutment-receiving cavities havingsurroundingretainin -flanges, of a series of round contact rubber abutnients mounte beyond the bearing-faces of the ahutuwnts, and provided with inner securing-nuts substantial] as set forth.

11-. T ecombiniitionwithawheel-tircprovided with a series of abutsmut-receiving cavitieshavingsurroundingretaiuingilanges of a series of ground-contact rubber abutments mounted in said recesses, and securing-- in said recesses, and secur =11. ing-bolts passing through the abutments and tire pro'vlded with-bearing-heads extending llC bolts essing through th'e abutments and tire provi ed with bearing-heads extending be- 1 yond the bearingiuees of the ebutments and 1 provided with inner seeuringdiuts, said bolts 1 being capable of inward and outward 1novemen-t threugh the tire-bearing, substantially l as set forth. 12. A wheel-tire provided with a series of alternately-arranged quadrilateral beeringl abutments of resilient material with securing- I belts passing through the abutme'nts and prog ideid. with bearing-heads, substantially as set mt 1. l

13. A wheel-tire provided with a series e1 recesses and a series "of segmrete resiiient ground-eontaet tread ebutments secured in said recesses, with bolts secured in the tire passing through the abutmentsend provided with bearing-heads arranged tomelge contact with the ground, substantially as set forth;

In testimony whereof I efifix my signature in presence of two Witnesses.

' HENRY DEFOREST HUBBARD.

Witnesses:

ALBERT A. MANTELL, JAM S M00. MILLER. 

